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30340223213 = 349373233069
BaseRepresentation
bin11100010000011010…
…110001000011101101
32220022110111000212212
4130100122301003231
5444114044120323
621534344140205
72122600433156
oct342032610355
986273430785
1030340223213
111195a2a0843
125a68a67665
132b26a07201
14167b6cc92d
15bc8930b78
hex7106b10ed

30340223213 has 8 divisors (see below), whose sum is σ = 30508863000. Its totient is φ = 30172051008.

The previous prime is 30340223203. The next prime is 30340223237. The reversal of 30340223213 is 31232204303.

It can be written as a sum of positive squares in 4 ways, for example, as 4271537449 + 26068685764 = 65357^2 + 161458^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30340223213 is a prime.

It is a super-2 number, since 2×303402232132 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30340223203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13643 + ... + 246711.

It is an arithmetic number, because the mean of its divisors is an integer number (3813607875).

Almost surely, 230340223213 is an apocalyptic number.

It is an amenable number.

30340223213 is a deficient number, since it is larger than the sum of its proper divisors (168639787).

30340223213 is a wasteful number, since it uses less digits than its factorization.

30340223213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233791.

The product of its (nonzero) digits is 2592, while the sum is 23.

Adding to 30340223213 its reverse (31232204303), we get a palindrome (61572427516).

The spelling of 30340223213 in words is "thirty billion, three hundred forty million, two hundred twenty-three thousand, two hundred thirteen".

Divisors: 1 349 373 130177 233069 81341081 86934737 30340223213